Why are we able to see the tap water in a glass even though it is colourless?

Answer the following questions: (d) Two students are separated by a 7 m partition wall in a room 10 m high. If both light and sound waves can bend aroundobstacles, how is it that the students are unable to see each other even though they can converse easily.

Why we do not see the wave properties of a baseball ?

Why we do not see the wave properties of a baseball ?

Why do we store water in matkas (earthern pots)?

Why do we see water droplets on outer surface of a glass containing ice - cold water?

A man moving in rain holds his umbrella inclined to the vertical even though the rain drops are falling vertically downwards. Why?